7768122747 has 16 divisors (see below), whose sum is σ = 12913243392. Its totient is φ = 4035388320.

The previous prime is 7768122721. The next prime is 7768122779. The reversal of 7768122747 is 7472218677.

It is not a de Polignac number, because 7768122747 - 2¹² = 7768118651 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7768122747.

It is not an unprimeable number, because it can be changed into a prime (7768122707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16813888 + ... + 16814349.

It is an arithmetic number, because the mean of its divisors is an integer number (807077712).

Almost surely, 2^7768122747 is an apocalyptic number.

7768122747 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7768122747 is a deficient number, since it is larger than the sum of its proper divisors (5145120645).

7768122747 is a wasteful number, since it uses less digits than its factorization.

7768122747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33628258.

The product of its digits is 1843968, while the sum is 51.

The square root of 7768122747 is about 88136.9544912916. The cubic root of 7768122747 is about 1980.4871388376.

The spelling of 7768122747 in words is "seven billion, seven hundred sixty-eight million, one hundred twenty-two thousand, seven hundred forty-seven".